2007 Compass Patriot MK Factory Service Manual 9 - ENGINE

*NO CRANK CONDITION

For a complete wiring diagram Refer to Section 8W.



Possible Causes
 
MECHANICAL CONDITION
 
BATTERY CIRCUIT RESISTANCE TOO HIGH
 
START ENABLE CIRCUITS
 
TRANSMISSION RANGE SENSOR
 
FUSED IGNITION SWITCH OUT (START)
 
CLUTCH INTERLOCK SWITCH SIGNAL CIRCUIT
 
CLUTCH INTERLOCK SWITCH GROUND CIRCUIT
 
CLUTCH INTERLOCK SWITCH
 
STARTER
 




Diagnostic Test

1. MECHANICAL CONDITION

NOTE: Check and diagnose all the TIPM DTC(s) before continuing.


NOTE: Ensure the Gear selector is in Park or Neutral.


NOTE: Verify the battery is fully charged and capable of passing a load test before continuing.


WARNING: Make sure the battery is disconnected, then wait two minutes before proceeding. Failure to do so may result in personal injury or possible death.


Turn the engine over by hand to make sure the engine is not seized.

Is the engine able to turn over?

Yes


No

2. EXCESSIVE RESISTANCE IN THE BATTERY CIRCUIT

Connect the battery cables.
Turn the ignition off.
Check the Battery Cables for excessive resistance using the service information procedure.

Did either Battery Cable have a voltage drop greater than 0.2 of a volt?

Yes


No

3. MANUAL TRANSMISSION


Is this vehicle equipped with a Manual transmission?

Yes


No

4. START ENABLE OPERATION (ATX)

Turn ignition on.
Using a scan tool, monitor the Ignition Start Switch Sense.
Turn the ignition switch to the crank position.

Does the Ignition Start Switch Sense state change from Low to High?

Yes


No

5. START ENABLE CIRCUIT (ATX)



Turn the ignition off.
Disconnect the PCM harness connector.
Using a 12-volt test light connected to ground, probe the Start Enable circuit in the PCM harness connector while holding the ignition key in the start position.

Does the test light illuminate brightly?

Yes


No

6. TRANSMISSION RANGE SENSOR (ATX)



Turn the ignition off.
Test light still in the above position.
Disconnect the Transmission Range Sensor harness connector.
Using a jumper wire, connect one end to the Start Enable circuit and the other to the Fused Ignition Switch Output (Start) circuit in the Transmission Range Sensor harness connector.
Turn the ignition to the crank position.

Does the test light illuminate brightly?

Yes


No

7. FUSED IGNITION SWITCH OUTPUT (START) CIRCUIT (ATX)



Turn the ignition off.
Using a 12-volt test light connected to ground, probe the Fused Ignition Switch Output (Start) circuit in the Transmission Range Sensor harness connector.
Turn the ignition to the crank position.

Does the test light illuminate brightly?

Yes


No

8. START ENABLE OPERATION (MTX)

Turn ignition on.
Using a scan tool, monitor the Ignition Start Switch Sense.
Turn the ignition switch to the crank position.

Does the Ignition Start Switch Sense state change from Low to High?

Yes


No

9. STATER ENABLE CIRCUIT (MTX)



Turn the ignition off.
Disconnect the PCM harness connector.
Using a 12-volt test light connected to ground, probe the Start Enable circuit in the PCM harness connector while holding the ignition key in the start position.

Does the test light illuminate brightly?

Yes


No

10. CLUTCH INTERLOCK OPERATION (MTX)

Turn ignition on.
Using a scan tool, monitor the Clutch Switch.
Press the Clutch in and out.

Does Clutch Switch display Released and then Pressed?

Yes


No

11. CLUTCH INTERLOCK OPERATION (MTX)



Turn the ignition off.
Disconnect the PCM harness connector.
Using a 12-volt test light connected to battery voltage, probe the Clutch interlock Signal circuit in the PCM harness connector while pressing the clutch pedal in.

Does the test light illuminate brightly?

Yes


No

12. CLUTCH INTERLOCK SWITCH (MTX)



Turn the ignition off.
Test light still in the above position.
Disconnect the Clutch Interlock Switch harness connector.
Using a jumper wire, connect one end to the Clutch Interlock Switch Signal circuit and the other to the Clutch Interlock Switch ground circuit in the Clutch Interlock Switch harness connector.

Does the test light illuminate brightly?

Yes


No

13. CLUTCH INTERLOCK OPERATION (MTX)



Remove the jumper wire.
Using a 12-volt test light connected to battery voltage, probe the Clutch Interlock Switch ground circuit.

Does the test light illuminate brightly?

Yes


No